Product description the mp6 irons a mid 60 gram iron shaft is the perfect compliment to your micro ply lite wood shafts like the mp5 the mp6 irons use advanced aerospace micro ply technology for improved feel without sacrificing performance flex weight butt dia tip dia torque ball flight length l54g 5783704 5high39a66g 5963705 5high41r69g 5993705 5mid high41s72g 6003705 5mid high41